MT41J128M8 MDTIC [Micon Design Technology Corporation], MT41J128M8 Datasheet - Page 107

• Manufacturer Part Number: MT41J128M8
• Description: 1Gb: x4, x8, x16 DDR3 SDRAM
• Manufacturer: MDTIC [Micon Design Technology Corporation]

Figure 51: Initialization Sequence
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_4.fm - Rev. D 8/1/08 EN
V
DD
V
V
V
REF
DD
TT
Q
Power-up
ramp
T (MAX) = 200ms
Command
Address
sequence text,
BA[2:0]
RESET#
See power-up
initialization
conditions
ODT
set up 1
DQS
All voltage
supplies valid
and stable
CK#
CKE
A10
DM
DQ
in the
R
CK
t IO z
TT
= 20ns
T = 200µs (MIN)
T (MIN) = 10ns
t VTD
Stable and
valid clock
T = 500µs (MIN)
t CKSRX
t IS
DRAM ready for
external commands
t IS
NOP
T0
t CL
t CK
t XPR
t CL
BA0 = L
BA1 = H
BA2 = L
Code
Code
MR2
MRS
107
T1
t MRD
BA0 = H
BA1 = H
BA2 = L
MR3
Code
Code
MRS
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t MRD
DLL enable
MR1 with
BA0 = H
BA1 = L
BA2 = L
Code
Code
Ta0
1Gb: x4, x8, x16 DDR3 SDRAM
MRS
t MRD
MR0 with
DLL reset
BA0 = L
BA1 = L
BA2 = L
Tb0
Code
Code
MRS
Indicates A Break in
Time Scale
t MOD
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ZQ calibration
t DLLK
A10 = H
Tc0
ZQCL
t ZQ
Operations
INIT
operation
Normal
Valid
Td0
Valid
Valid
Valid
Valid
Valid
Don’t Care